Add support for the new C23 deallocators

[godlygeek]

Record calls to the free_sized and free_aligned_sized deallocators introduced in C23.

Instead of delegating to the original functions, we delegate to the free function for both. This is a legal implementation of these new deallocators, and simplifies our implementation since these functions may not always be available.

Closes #725

This is much of the code from #817, but updated to interpose the C23 deallocators even when Memray itself wasn't built with C23, and to test these changes through the memray._test_utils extension module instead of adding something to one of the hand written extension modules in our test suite.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 92.30769% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.39%. Comparing base (7a53953) to head (4a4ce8b).

Files with missing lines	Patch %	Lines
tests/integration/test_tracking.py	90.32%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #988      +/-   ##
==========================================
- Coverage   92.43%   92.39%   -0.04%     
==========================================
  Files         101      101              
  Lines       13160    13199      +39     
  Branches      474      477       +3     
==========================================
+ Hits        12164    12195      +31     
- Misses        996     1004       +8     

Flag	Coverage Δ
cpp	92.39% <92.30%> (-0.04%)	⬇️
python_and_cython	92.39% <92.30%> (-0.04%)	⬇️

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[godlygeek]

Thanks for the contribution, @naamanu!